[MacPorts] #58280: Black screen on GTK2 +quartz and KDE ports

[MacPorts]

#58280: Black screen on GTK2 +quartz and KDE ports
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  Reporter:  slavad                                 |      Owner:  (none)
      Type:  defect                                 |     Status:  new
  Priority:  Normal                                 |  Milestone:
 Component:  ports                                  |    Version:
Resolution:                                         |   Keywords:
      Port:  gtk2 kde inkscape dia kstars umbrello  |
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Description changed by slavad:

Old description:

> Main window for some GTK2 +quartz apps is black. See the screenshots for
> Inkscape and Dia. Black screen also sometimes starts flickering with no
> reason or when window is resized.
>
> Originally these apps were installed as +x11 variants, I reinstalled all
> deps in the +quartz variant and then installed these apps in the +quartz
> variant. Maybe I missed some library?
>
> There is definitely something wrong: Umbrello and Kstars are having the
> same problems, see the screenshots. Black screen can randomly
> appear/disappear if I click on the window.
>
> macOS 10.14.4
>
> On macOS 10.13 all was ok. It appeared only after I migrated ports to
> 10.14

New description:

 Main window for some GTK2 +quartz apps is black. See the screenshots for
 Inkscape and Dia. Black screen also sometimes starts flickering with no
 reason or when window is resized.

 Originally these apps were installed as +x11 variants, I reinstalled all
 deps in the +quartz variant and then installed these apps in the +quartz
 variant. Maybe I missed some library?

 There is similar issue with KDE: #58280. Rendering mode setting resolves
 the issue. I wonder if there is similar setting for GTK.

 macOS 10.14.4

 On macOS 10.13 all was ok. It appeared only after I migrated ports to
 10.14

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Ticket URL: <https://trac.macports.org/ticket/58280#comment:13>
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